| 南黄海表层沉积物的碎屑矿物、地球化学特征及物源分析 |
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| 引用本文： | 尹秀珍,刘万洙,蓝先洪,万晓樵.南黄海表层沉积物的碎屑矿物、地球化学特征及物源分析[J].吉林大学学报(地球科学版),2007,37(3):491-499. |
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| 作者姓名： | 尹秀珍 刘万洙 蓝先洪 万晓樵 |
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| 作者单位： | 1.中国地质大学 地球科学与资源学院，北京 100083;2.吉林大学 地球科学学院，长春 130061;3.青岛海洋地质研究所，山东 青岛 266071 |
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| 基金项目： | 中国地质调查局国土资源大调查项目(20001100011021) |
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| 摘 要： | 以南黄海中、西部表层沉积物的测试数据为基础，分析了表层沉积物的碎屑矿物组合特征、分布规律和能灵敏指示物源的CaCO3、TiO2、Cu、Sr和Ba的含量特征、分布规律，将这些特征分别与黄河和长江沉积物、黄土进行对比，探讨了南黄海中、西部的物质来源。南黄海西北部主要来源于现代黄河物质和山东半岛及邻近海域的侵蚀基岩；苏北黄河三角洲沉积物主要来源于全新世海侵期海水对古黄河沉积物的改造，其次为海水对基岩的侵蚀，现代黄河物质的影响较小；中部表现出多源性，沉积物部分来源于海侵期海水对海底基岩的侵蚀、改造、再沉积，部分来源于长江物质、黑潮物质及古黄河物质，长江物质影响大于古黄河物质；南部主要来源于长江物质。研究结果表明，现代黄河物质影响的范围小于长江物质；古黄河曾于晚更新世在苏北入海。
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| 关 键 词： | 南黄海 碎屑矿物 地球化学 物源 |
| 文章编号： | 1671-5888（2007）03-0491-09 |
| 收稿时间： | 2006-07-05 |
| 修稿时间： | 2006-07-05 |
Detrital Minerals and Geochemistry of the Surface Soft Sediments and Their Provenance, South Yellow Sea, China |
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| YIN Xiu-zhen,LIU Wan-zhu,LAN Xian-hong,WAN Xiao-qiao.Detrital Minerals and Geochemistry of the Surface Soft Sediments and Their Provenance, South Yellow Sea, China[J].Journal of Jilin Unviersity:Earth Science Edition,2007,37(3):491-499. |
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| Authors: | YIN Xiu-zhen LIU Wan-zhu LAN Xian-hong WAN Xiao-qiao |
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| Institution: | 1.School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083，China;2.College of Earth Sciences, Jilin University,Changchun 130061，China;3.Qingdao Institute of Marine Geology, Qingdao，Shandong 266071，China |
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| Abstract: | Based on the previously available data base for the surface soft sediments in the central and western South Yellow Sea,the authors focused on the combination characteristics and distribution rules of detrital minerals,content characteristics and distribution rules of CaCO3,TiO2,Cu,Sr and Ba in order to indicate sources of the sediments.Meanwhile,the characteristics are compared with the adjacent sediments of Yellow River,Yangtze River and some loess respectively.Results on material resources show that in the northwestern South Yellow Sea,sediments are mainly from the Yellow River and minorly from basement erosion at Shangdong peninsula and adjacent sea,sediments of the Yellow River delta in northern Jiangsu mainly came from the re-transportation of sediments of the old Yellow River and partly the erosion of base rocks by seawater in transgression period in Holocene.The central area had diversity of sediment sources,including sediments derived from former sediments and base rocks which were re-transpoted and re-deposited,also including some material that were carried by the Yangtze River,Kuroshio and old Yellow River.In the southern part of the studied area,sediments mainly come from the Yangtze River.The results indicate that the depositional area influenced by the modern Yellow River is second to those of the Yangtze River,and the paleo-channel of Yellow River is different from the present one,i.e.it ended at and flew into the Yellow Sea at Northern Jiangsu in late Pleistocene. |
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| Keywords: | the South Yellow Sea detrital minerals geochemistry provenance |
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